Type-writing machine.



H. M. HAMILTON.

TYPE WRITING MAGHINB.

APPLICATION 11,121] JULY 12,1907.

i Q6 Fatenteti Dec. 27, 1910 -resi HENRY M. HAMILTON, F SGRANTON,PENNSYLVANIA, ASSIGNOR 'IO INTERNATIONAL TEXT BOOK COMPANY, OF SCRANTON,PENNSYLVANIA, A CQRPORATION OF PENN- SYLVANIA.

TYPE-WRITING MACHINE.

Application filed July 12, 1907.

Serial No. 383,485.

.lo all whom it may concern:

Be it known that I, l'lENRY M. Hsnunox, a citizen of the United States.and esiding at Scranton, in the county of Lackawanna and State ofPennsylvania, have invented certain new and useful Improvements inllyperitiug Machines, of which the following is a specification.

The object of the present invention is to produce a simple and durabletype bar joint which is adapted to be easily adjusted and to operatewith a minimum of friction.

The invention will be described in connection with the accompanyingdrawing, in which,

Figure 1 is a side view of a type bar and hanger embodying the presentinvention, partly in section; Fig. 2 is a section on the line 22 of Fig.1; Fig. 3 is a face view of the hanger shown in Figs. 1 and 2, the typebar being removed; Fig. 4. is a side view of part of the type bar; Figs.5 and (5 are views similar to Figs'l and. 2 showing a different form ofthe invention; Figs. 7 and 8 are views similar to Figs. 1 and 2 showingstill another form of the invention.

Referring to Figs. 1, Qand 3, 1 indicates a hanger the shank of whichmay be of any form suitable for attachment to the segment of atypewriting machine, and 2 indicates a type barv pivotally connectedwith thohanger. The hanger is provided with a plurality of pins 3arranged in a circle and projecting from one side, which pins form thebearing proper for the type bar. The type bar is provided with acircular opening 4, the wall of which closely encircles the pins Thetype bar may be connected with the hanger by any suitable means, aconvenient means being a screw 5 passing centrally through the opening 1and into a threaded opening G in the center of the hanger. This screw ispreferably undercut, -as at 7, leaving a marginal flange 8 only incontactw-ith the type car.

In Figs. 5 and 6 I have shown a plurality of conical pins 9 which arescrewed into or. otherwise connected with the hanger 1, the larger endsof the pins being farthest from the hanger. The wall 10 of the openinginthe type'bar is reversely coned and adapted to fit snugly about the pins9 and. hence the said pins are adapted to retain the type bar on thehanger without additional means. A. screw such as the screw 5 of Fig".2, may be used, if desired, to afford greater security in the joint andto assist in guiding the type bar. By removing two of the pins 9 thetype bar may be removed from its hanger and it is preferable to havesaid In this case a screw 13 or I have found that a type bar mounted ona circular series of pins runs with a minimum of friction and may beeasily kept in alinement. the pins is adapted to hold lubricant tofurther reduce the friction of the joint. The screw having a lateralflangeis also adapted to hold the type bar in alinement with a minimumof friction.

'It will be seen that, broadly, my invention consists in a type-barbearing in which one of the parts has a continuous circular hearingsurface and the other has a plurality of cooperating bearing surfaces,or in other words, an interrupted bearing surface.

Having described my invention what I claim and desire to secure byLetters-Pat-' out is,

Furthermore the space between tion of a type bar hanger and a type barmounted thereon, one of said parts having a circular series of laterallyprojecting plns each supported at one end only and the other part havingan eye to receive said pins, the type bar being adapted to turn aboutsaid pins. t

2. In a typewritin machine, the combination of a type bar ianger and atype bar mounted thereon, one of said parts having a circular series oflaterally projecting pins and the other part having an eye to receivesaid pins, the type bar being adapted to turn about said pins, and ascrew passing through said eye andfinto the part carrying the pins, forthe purpose set forth.

3. In a typev'vriting machine, the combination with a hanger providedwith a circular series of laterally projecting pins each supported atone end only, of a type bar having an eye, the Wall of which is adaptedto encircle and bear upon said pins.

4. In a typewriting machine, the combination with a hanger provided witha circular series of laterally projecting pins, of a type bar having aneye, the Wall of which is adapted to encircle and bear upon said pins,and a screw passing through said eye into the hanger and adapted to bearon the type bar.

5. In a typewriting machine, the co1nbination with a hanger providedwith a circular series of laterally projecting pins, of a type herhaving an eye, the Wall of which is adapted to encircle and bear uponsaid pins,

and a screw passing through said eye into the hanger and having alaterally projecting annular flange adapted to bear on the type bar.

6. In a typewriting machine, the combination of a type bar and a hanger,one of said parts having a circular'serles of laterally projecting pinseach supported at one end .only and theother part having a circularbearing adapted to engage said pins.

'1' In a typewriting machine, the combination of a type bar and ahanger, one of said parts having a circular series of laterallyprojecting pins and the other part having a circular bearing adapted toengage said pins, and a screw for preventing the separation of saidparts.

8. I11 a typewriting machine, the combination of a type bar and ahanger, one of said parts having a circular series of projections eachsupported at one end only and the other part having a circular bearingadapted to engage the projections.

In testimony whereof I aflix my signature in presence of two witnesses.

HENRY M. HAMILTON.

Witnesses:

I. ELVET JoNEs, FRANK J. TANNER.

